Sweet and Easy Rhubarb Cake Recipe
This post may contain affiliate links. Please read my Disclosure and Privacy Policy.
I love rhubarb cake and this recipe has a special place in my heart. Growing up my grandparents would always bring a paper bag of goodies with them every time they visited. While it wasn’t anything expensive, I would get excited to see what they brought in their bag. My favorite things included packs of gum, my grandpa’s homemade maple syrup and fresh rhubarb. Just thinking about that makes me a little sad.
Isn’t it always simple memories you miss most?
Because we always seemed to have an endless supply of rhubarb when it was in season, my mom had several rhubarb cake recipes in which to use this tart but wonderful fruit like vegetable. I actually looked it up and while it is technically a vegetable it is regulated in the US as though it were a fruit. You learn something new every day. If you’d like to know more about rhubarb, be sure to check out this What is Rhubarb post.
Rhubarb Cake Ingredients
This is a fairly basic rhubarb upside down cake. Ingredients you’ll need include:
- fresh rhubarb
- sugar
- strawberry JELLO
- miniature marshmallows.
- Betty Crocker Super Moist Yellow Cake Mix (or your favorite cake mix)
- oil
- eggs
- water
- whipped cream or vanilla ice cream, if desired
Rhubarb Cake Recipe
This rhubarb cake has always been a popular one for our family. I don’t know where the recipe originated because it has been passed down. The top of the cake has just the right mix of sweet and tart with an extremely moist cake below.

Sweet and Easy Rhubarb Cake
Ingredients
- 5 cups rhubarb cut into small bite sized pieces.
- 1 cup sugar
- 1 small box strawberry JELLO
- 3 cups miniature marshmallows.
- Betty Crocker Super Moist Yellow Cake Mix or your favorite cake mix
- 1/2 cup oil
- 3 eggs
- 1 cup water
Instructions
-
Grease 9 X 13 inch pan. Preheat oven to 350 degrees.
-
Spread rhubarb on bottom of pan.
-
Pour sugar over rhubarb
-
Sprinkle gelatin over sugar
-
Top with mini marshmallows
-
Mix cake according to package directions using oil, eggs and water.
-
Pour over rhubarb mixture.
-
Bake one hour, or until a toothpick inserted in the center comes out clean
-
Cool for 10 minutes. Loosen edges and invert onto a platter or serving dish. Serve warm with whipped cream, if desired.
This upside down rhubarb cake is very easy and is sure to be a hit with anyone who enjoys rhubarb. Thankfully my mom has a thriving rhubarb plant so in the late spring and early summer when she is harvesting rhubarb, I always get a bag full of the tart red stalks. Perfect for making rhubarb pie or rhubarb sauce. These rhubarb muffins have become another family favorite! Have you ever tried rhubarb pudding? I think we would all enjoy that as well!

If you give this recipe a try, let me know what you think!


i’ve never even heard of this type of cake, but it sure does look yummy!:)
This looks incredible. My step-moms grandma always made rhubarb desserts. I must give this a try!
I’ve made this recipe three times and my family loves it!
This looks delicious! I grew up with rhubarb growing in the back yard so we had desserts made with rhubarb often . Oh how I miss those yummy desserts. Rhubarb cake was the dessert made most. The recipe we have for rhubarb cake is so different from yours. I’m going to have to get some rhubarb and give yours a try
Definately want to save this! My parents have some rhubarb in their garden this year. Thanks for sharing!
This looks pretty good. I remember as a child picking our neighbors rhubarb and eating it but we were always caught..lol. We were very young and we’d get in trouble for doing it. Looks so moist and yummy
sounds really good….one of my dad’s favorite pies was rhubarb
Uh oh..going to have to work out more..now you donr it!
What a cool recipe! My parents have a rhubarb patch that has been growing forever!! This is a great addition to my recipe file. I’m pinning it now. Thanks!
Is it weird I’ve never had rhubarb in my life?
My mom loves rhubarb pie. I haven’t tried rhubarb cake.
Oh wow!~ Looks amazing and I could even make this with one of my gluten free cake mixes! I LOVE Rhubarb!
I have Rubarb growing in my back yard an never knew what to do with it,so this is someihting im gonna try,thanks
this looks yummy! I have never tried rhubarb so it would be a first.
I love rhubarb! I am going to try this recipe.
I just saw some really decent rhubarb at Whole Foods – in late Dec! This recipe is a good excuse to buy it and have a surprise dessert!!!! Spring in December!
I have to try this sounds soo easy and looks soo good!
Oh this looks good. My mom would love it! Thanks for sharing.
Love rhubarb pie, we always had a patch of rhubarb when I was growing up. One of my favorite fruit pies. Live in FLorida now that rhubarb doesn’t seem to grow. I miss it!